Regulating the Electrochemical Nitrate Reduction Performance with Controllable Distribution of Unconventional Phase Copper on Alloy Nanostructures DOI Creative Commons
Yuecheng Xiong, Yunhao Wang, Mingzi Sun

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 6, 2024

Abstract Electrochemical nitrate reduction reaction (NO 3 RR) is emerging as a promising strategy for removal and ammonia (NH ) production using renewable electricity. Although great progresses have been achieved, the crystal phase effect of electrocatalysts on NO RR remains rarely explored. Here, epitaxial growth unconventional 2H Cu hexagonal close‐packed ( hcp IrNi template, resulting in formation three IrNiCu@Cu nanostructures, reported. IrNiCu@Cu‐20 shows superior catalytic performance, with NH Faradaic efficiency (FE) 86% at −0.1 (vs reversible hydrogen electrode [RHE]) yield rate 687.3 mmol g −1 h , far better than common face‐centered cubic Cu. In sharp contrast, IrNiCu@Cu‐30 IrNiCu@Cu‐50 covered by shell display high selectivity toward nitrite 2 − ), FE above 60% 0.1 RHE). Theoretical calculations demonstrated that has optimal electronic structures due to highest d‐band center strongest trend lowest energy barriers. The electroactivity originates from abundant low coordination sites surface, which guarantees fast electron transfer accelerate intermediate conversions. This work provides feasible tactic regulate product distribution engineering electrocatalysts.

Language: Английский

Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting DOI
Quan Li, Hui Jiang,

Guoliang Mei

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 3694 - 3812

Published: March 22, 2024

Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts the two half-reactions of (e.g., and oxygen evolution reactions, HER OER) separately, there growing interest designing bifunctional electrocatalysts, which are able to catalyze both OER. In addition, considering high overpotentials required OER while limited value produced oxygen, is another rapidly exploring alternative oxidation reactions replace hybrid toward energy-efficient generation. This Review begins with an introduction on fundamental aspects splitting, followed thorough discussion various physicochemical characterization techniques that frequently employed probing active sites, emphasis reconstruction during redox electrolysis. The design, synthesis, performance diverse based noble metals, nonprecious metal-free nanocarbons, overall acidic alkaline electrolytes, thoroughly summarized compared. Next, their application also presented, wherein anodic include sacrificing agents oxidation, pollutants oxidative degradation, organics upgrading. Finally, concise statement current challenges future opportunities presented hope guiding endeavors quest sustainable

Language: Английский

Citations

229
Defect engineering of two-dimensional materials for advanced energy conversion and storage DOI
Fu Liu, Zhanxi Fan

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(5), P. 1723 - 1772

Published: Jan. 1, 2023

Defective two-dimensional (2D) materials show huge potential for energy-related fields. This review overviews the formation/evolution mechanisms and engineering strategies of defects in 2D materials, which enable enhanced electrode reaction kinetics.

Language: Английский

Citations

201
Recent advances in interface engineering strategy for highly‐efficient electrocatalytic water splitting DOI Creative Commons
Yunmei Du, Bin Li, Guangrui Xu

et al.

InfoMat, Journal Year: 2022, Volume and Issue: 5(1)

Published: Oct. 13, 2022

Abstract The hydrogen energy generated by the electrocatalytic water splitting reaction has been established as a renewable and clean carrier with ultra‐high density, which can well make up for shortcomings of conventional sources, such geographical limitations, climatic dependence, wastage. Notably, introduction electrocatalysts enhance efficiency process to generate hydrogen. Particularly, heterostructure constructed coupling multiple components (or phases) have emerged most promising option due well‐known electronic synergistic effects. existing reviews on interface engineering electrocatalyst design mostly focus relationship between heterostructures specific reactions. However, comprehensive overview integration model building, directional synthesis, mechanism rarely reported. To this end, in review, development catalysts is systematically introduced from perspective classification, growth regulation performance based interfacial microenvironment (bonding, configuration, lattice strain, etc.), thereby offering useful insights construction models. Besides, combined current applications strategies, challenges future are discussed relevant solutions proposed. Overall, review serve theoretical reference mechanism, further promote production technologies low consumption high yield. image

Language: Английский

Citations

136
Intermetallic Nanocrystals for Fuel-Cells-Based Electrocatalysis DOI

Fangxu Lin,

Menggang Li, Lingyou Zeng

et al.

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(22), P. 12507 - 12593

Published: Nov. 1, 2023

Electrocatalysis underpins the renewable electrochemical conversions for sustainability, which further replies on metallic nanocrystals as vital electrocatalysts. Intermetallic have been known to show distinct properties compared their disordered counterparts, and long explored functional improvements. Tremendous progresses made in past few years, with notable trend of more precise engineering down an atomic level investigation transferring into practical membrane electrode assembly (MEA), motivates this timely review. After addressing basic thermodynamic kinetic fundamentals, we discuss classic latest synthetic strategies that enable not only formation intermetallic phase but also rational control other catalysis-determinant structural parameters, such size morphology. We demonstrate emerging nanomaterials potentially advancement energy electrocatalysis. Then, state-of-the-art characterizations representative electrocatalysts emphasis oxygen reduction reaction evaluated a MEA setup. summarize review by laying out existing challenges offering perspective future research directions toward practicing conversions.

Language: Английский

Citations

92
Coupled and decoupled electrochemical water splitting for boosting hydrogen evolution: A review and perspective DOI
Zhao Li,

Limei Sun,

Yao Zhang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 510, P. 215837 - 215837

Published: April 9, 2024

Language: Английский

Citations

74
Crystal Phase Engineering of Ultrathin Alloy Nanostructures for Highly Efficient Electroreduction of Nitrate to Ammonia DOI Creative Commons
Yunhao Wang,

Fengkun Hao,

Mingzi Sun

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(14)

Published: Jan. 26, 2024

Abstract Electrocatalytic nitrate reduction reaction (NO 3 RR) toward ammonia synthesis is recognized as a sustainable strategy to balance the global nitrogen cycle. However, it still remains great challenge achieve highly efficient production due complex proton‐coupled electron transfer process in NO RR. Here, controlled of RuMo alloy nanoflowers (NFs) with unconventional face‐centered cubic (fcc) phase and hexagonal close‐packed/fcc heterophase for RR reported. Significantly, fcc NFs demonstrate high Faradaic efficiency 95.2% large yield rate 32.7 mg h −1 cat at 0 −0.1 V (vs reversible hydrogen electrode), respectively. In situ characterizations theoretical calculations have unraveled that possess highest d‐band center superior electroactivity, which originates from strong Ru─Mo interactions intrinsic activity phase. The optimal electronic structures supply adsorption key intermediates suppression competitive evolution, further determines remarkable performance. successful demonstration high‐performance zinc‐nitrate batteries suggests their substantial application potential electrochemical energy systems.

Language: Английский

Citations

73
Recent Progress on Phase Engineering of Nanomaterials DOI
Qinbai Yun, Yiyao Ge, Zhenyu Shi

et al.

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(23), P. 13489 - 13692

Published: Nov. 14, 2023

As a key structural parameter, phase depicts the arrangement of atoms in materials. Normally, nanomaterial exists its thermodynamically stable crystal phase. With development nanotechnology, nanomaterials with unconventional phases, which rarely exist their bulk counterparts, or amorphous have been prepared using carefully controlled reaction conditions. Together these methods are beginning to enable engineering (PEN), i.e., synthesis phases and transformation between different obtain desired properties functions. This Review summarizes research progress field PEN. First, we present representative strategies for direct modulation diverse kinds nanomaterials. We cover ranging from metal nanostructures such as Au, Ag, Cu, Pd, Ru, alloys; oxides, borides, carbides; transition dichalcogenides (TMDs) 2D layered review growth wet-chemical reduction seed-mediated epitaxial chemical vapor deposition (CVD), high pressure transformation, electron ion-beam irradiation. After that, summarize significant influence on various unconventional-phase also discuss potential applications developed areas including catalysis, electrochemical energy storage (batteries supercapacitors), solar cells, optoelectronics, sensing. Finally, existing challenges future directions

Language: Английский

Citations

64
Electrochemical Co-Production of Ammonia and Biodegradable Polymer Monomer Glycolic Acid via the Co-Electrolysis of Nitrate Wastewater and Waste Plastic DOI

Tianlun Ren,

Zhongyao Duan,

Huizhen Wang

et al.

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(15), P. 10394 - 10404

Published: July 25, 2023

Electrochemical reformation of nitrate wastewater and poly(ethylene terephthalate) (PET) plastic waste into ammonia (NH3) fine chemicals is a sustainable strategy for resource utilization. Herein, co-production system glycolic acid (GA, degradable polymer monomer) constructed by coupling reduction ethylene glycol (EG, in PET hydrolysate) oxidation. Low-crystalline CoOOH (LC-CoOOH/CF) Pd nanothorns (Pd NTs/NF) grown situ on the metal foam substrates are employed as cathode anode, respectively. The high density amorphous regions LC-CoOOH/CF enables enhanced adsorption provides abundant active sites, ultimately leading to an Faradic efficiency (FE) 97.38 ± 1.0% at −0.25 V vs reversible hydrogen electrode (RHE). Meanwhile, unique nanothorn morphology endows NTs/NF with high-curvature tip, triggering tip effect (TE) promote highly selective oxidation EG GA. Furthermore, two-electrode system, NH3 GA operated low energy consumption (onset voltage: 0.5 V), much lower than traditional electrolysis process (1.4 V). This study method utilization co-produce value-added chemicals.

Language: Английский

Citations

59
Concurrent alloying and vacancy engineering for intensifying hydrogen spillover towards alcohol–water co-electrolysis DOI
Hui Xu, Kun Wang, Guangyu He

et al.

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(33), P. 17609 - 17615

Published: Jan. 1, 2023

A PdRu–RuO 2 heterostructure with a well-defined PdRu alloy and oxygen-vacancy-enriched RuO is constructed to intensify the hydrogen spillover from Ru .

Language: Английский

Citations

55
Strain and Surface Engineering of Multicomponent Metallic Nanomaterials with Unconventional Phases DOI
Qing Yao,

Zhiyong Yu,

Leigang Li

et al.

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(15), P. 9676 - 9717

Published: July 10, 2023

Multicomponent metallic nanomaterials with unconventional phases show great prospects in electrochemical energy storage and conversion, owing to unique crystal structures abundant structural effects. In this review, we emphasize the progress strain surface engineering of these novel nanomaterials. We start a brief introduction configurations materials, based on interaction types between components. Next, fundamentals strain, effect relevant phases, their formation mechanisms are discussed. Then multicomponent is demonstrated from aspects morphology control, crystallinity modification, reconstruction. Moreover, applications strain- surface-engineered mainly electrocatalysis also introduced, where addition catalytic performance, structure–performance correlations highlighted. Finally, challenges opportunities promising field prospected.

Language: Английский

Citations

45